Asus Zenfone 10 vs Realme C51 - Detailed Phone Comparison

Detailed Comparison

Specification
Realme C51
Realme C51
Realme

General

Launch Date July 10, 2023 August 1, 2023
Release Year 2023 2023

Physical

Volume 93.78 cm³ 102.59 cm³
Screen Size to Weight Ratio 3.44 "/g 3.62 "/g
Weight 172 g 186 g
Height 146.5 mm 167.2 mm
Width 68.1 mm 76.7 mm
Thickness 9.4 mm 8 mm
Foldable Design No No
Available Colors
  • Midnight Black
  • Aurora Green
  • Starry Blue
  • Eclipse Red
  • Comet White
  • Mint Green
  • Carbon Black

Display

Screen Size 5.92 " 6.74 "
Resolution 1080 x 2400 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.8 % 85.5 %
Pixel Density 445 PPI 260 PPI
Refresh Rate 144 Hz 90 Hz
Typical Brightness N/A N/A
HBM Brightness 800 nits N/A
Peak Brightness 1100 nits 560 nits

Hardware

Battery Capacity per Screen Area 122.69 mAh/in² 110.07 mAh/in²
Battery Density 45.85 mAh/cm³ 48.74 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8550-AB Snapdragon 8 Gen 2 (4 nm) Unisoc Tiger T612 (12 nm)
CPU Octa-core (1x3.2 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510) Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Adreno 740 Mali-G57

Connectivity

USB Version 2.0 2.0
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0, OTG USB Type-C 2.0, OTG

Software

Operating System Android Android
Initial OS Version 13 13
Maximum OS Version 15

Comparison Summary

1. Specifications Comparison

FeatureAsus Zenfone 10Realme C51Practical Impact
Design
Dimensions (mm)146.5 x 68.1 x 9.4167.2 x 76.7 x 8.0Zenfone 10 is significantly smaller and more pocketable. C51 is larger and thinner.
Weight (g)172186Zenfone 10 is noticeably lighter for one-handed use.
BuildMissingMissingBuild materials impact durability and premium feel; information lacking for both.
Display
Size (inches)5.926.74C51 offers a much larger screen for media consumption; Zenfone 10 is more compact.
Resolution1080 x 2400720 x 1600Zenfone 10 has a sharper, more detailed display (445 ppi vs 260 ppi).
TypeSuper AMOLED, 144HzIPS LCD, 90HzZenfone 10's AMOLED provides richer colors, deeper blacks, and smoother scrolling thanks to the higher refresh rate.
Performance
ChipsetSnapdragon 8 Gen 2Unisoc Tiger T612Zenfone 10 boasts a flagship-level processor for significantly faster performance in demanding tasks and gaming.
CPUOcta-core (up to 3.2 GHz)Octa-core (up to 1.8 GHz)Zenfone 10's CPU offers superior multi-tasking and app loading speeds.
GPUAdreno 740Mali-G57Zenfone 10's GPU delivers a much better gaming experience with higher frame rates and detail.
RAM8/16GB4/6GBZenfone 10 offers more RAM for smoother multitasking and background app retention.
Camera
Main Camera50MP, Sony IMX76650MP, Samsung S5KJN1Both have 50MP sensors, but sensor size and image processing will likely differ, impacting image quality. Detailed comparison requires camera reviews.
Secondary Camera13MP Wide + Macro0.8MP DepthZenfone 10 offers a more usable ultrawide/macro lens. C51's depth sensor has limited practical use.
VideoUp to 8K@24fpsUp to 1080p@30fpsZenfone 10 supports much higher resolution video recording.
Battery
Capacity4300 mAh5000 mAhC51 has a larger battery capacity, potentially offering longer battery life. Real-world usage will depend on optimization.

2. Key Differences Analysis

Zenfone 10 Advantages:

  • Significantly more powerful: The Snapdragon 8 Gen 2 offers a massive performance advantage for demanding tasks, gaming, and future-proofing.
  • Superior Display: The AMOLED with 144Hz provides vibrant colors, deep blacks, and incredibly smooth scrolling.
  • Compact and Premium: Smaller form factor appeals to users who prioritize one-handed usability. Though build materials are unknown, the overall design suggests a more premium feel.
  • Better Camera System: While detailed comparison requires camera samples, the Zenfone 10's specs suggest a more versatile and capable camera system, particularly for video recording.

Realme C51 Advantages:

  • Larger Battery: The 5000 mAh battery may provide longer battery life for less demanding users.
  • Lower Price: Significantly more affordable, targeting budget-conscious buyers.
  • Larger Display: The 6.74-inch screen is better suited for media consumption and those who prefer a larger canvas.

3. User Profiles & Recommendations

Zenfone 10: Ideal for users who:

  • Prioritize performance and a smooth user experience.
  • Enjoy mobile gaming or use demanding applications.
  • Prefer a compact, one-handed phone.
  • Value a high-quality display.
  • Are willing to pay a premium for flagship features.

Realme C51: Ideal for users who:

  • Primarily use their phone for basic tasks like calling, texting, and social media.
  • Prioritize long battery life.
  • Are on a tight budget.
  • Prefer a large screen for media viewing.
  • Don't engage in demanding tasks like gaming.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The C51 is significantly cheaper.
  2. What are your primary phone usage patterns? Demanding users will appreciate the Zenfone 10's performance; casual users might find the C51 sufficient.
  3. Do you prioritize size and portability or a large screen? The Zenfone 10 is compact; the C51 has a much larger display.

My Choice: Asus Zenfone 10

While the Realme C51 offers excellent value for its price, the Asus Zenfone 10 is the clear winner for me. The significantly superior performance, gorgeous 144Hz AMOLED display, compact form factor, and promising camera system outweigh the price difference and larger battery of the C51. I value a smooth and responsive user experience, and the Zenfone 10 delivers that in spades. The compact size is a major plus for me, as I prefer one-handed usability. While the C51 is a good option for budget-conscious buyers, the Zenfone 10's premium features justify the higher price for my needs and preferences.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

Key Strengths:

  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.